1,720,958 research outputs found
Removing the wall around welfare: What do We learn from A8 immigrants in the UK?
No full textA relevant question within the growing debate on immigration policy concerns the impact of granting immigrants free access to the welfare system. I analyse the case of the European 2004 Accession (A8) countries and the lift of the temporary limitations to benefit eligibility that citizens from these countries faced until April 2011 in the UK. When the restrictions are relaxed A8 immigrants claim more benefits, but labour supply adjustments occur mainly for those who are more in need for assistance, namely women and the less educated, especially in the presence of children. Moreover, I provide evidence on two potential indirect effects. First, my results support the absence of magnet effects, as arrivals do not change from before to after the change in eligibility rules. Second, I show that granting immigrants access to welfare does not change the composition of the incoming flows
This site is closed! The effect of decommissioning mining waste facilities on mortality in the long run
No full textMining is typically linked to industrial development. However, waste generated by mineral extraction is a major source of environmental deterioration. This poses a trade-off between preserving the environment and fostering growth. We assess the long-run consequences of reduced exposure to mining waste on health by exploiting municipality-level variation in the staggered closure of facilities that treat and store mining waste in Italy over the course of five decades. We find that shutting down waste facilities decreases decadal mortality by 126 deaths per 100,000 inhabitants (i.e., by nearly 15%), while also improving the literacy and employment rates of the resident population. Our results point to positive health effects dominating potentially negative wealth effects
Oxidative modifications of conjugated and unconjugated linoleic acid during heating
No full textThe oxidative stability of conjugated linoleic (CLA) and linoleic (LA) acids in different chemical forms (free acids, methyl esters and homogeneous triacylglycerols) was compared. All model systems were heated at 180°C for different times (15, 30, 45 and 60 min). The primary oxidation products were evaluated by spectrophometric analysis, while the volatile compounds were determined by solid phase microextraction (SPME), coupled with gas chromatography-mass spectrometry (HRGC-MS). The isomer profile modifications were investigated by silver ion high performance liquid chromatography (Ag+-HPLC) equipped with an UV detector. Generally, peroxide values decreased during the heating time.
Among the volatiles, saturated aldehydes were the most represented
compounds. Isomerization of cis,trans and trans,cis CLA to trans,trans
isomers was observed mainly for the methyl form of CLA. The three
different chemical forms of LA never showed isomerization phenomena
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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